Multi-select questions tell you to 'Choose TWO' or 'Choose THREE'. Getting partial credit is not a thing — you must select all correct answers with no incorrect ones. The stem always states how many to choose, so trust it. These questions require precision, not best-guess elimination.
Start Scenario PracticeWhich three statements about using Python for device inventory and data serialization in network automation are true? (Choose three.)
Explanation: The correct answers describe practical uses of Python for inventory management and data handling. The incorrect options either misattribute YAML's features (it does not support comments natively in all parsers) or incorrectly state that JSON is always more human-readable than YAML (YAML is often considered more readable).
Which two statements about SD-WAN control plane components are true? (Choose two.)
Explanation: The vSmart controller is the centralized control plane that distributes OMP routes and policies, while the vBond orchestrator handles authentication and NAT traversal. vManage is the management plane, not a control plane component. vEdge and cEdge are data plane devices. The OMP protocol runs between vSmart and edge devices, not between vManage and vSmart.
Which two statements about Python data structures used in network automation are true? (Choose two.)
Explanation: Correct answers: B and D. B is correct because dictionaries are ideal for storing key-value pairs such as device parameters (IP, username, password). D is correct because lists are ordered and can hold multiple device names or IPs, and they support iteration. A is incorrect because tuples are immutable, so they cannot be modified after creation, which limits their use for dynamic data. C is incorrect because sets are unordered and do not support indexing; they are used for unique elements, not ordered collections. E is incorrect because strings are immutable and not suitable for storing multiple separate values.
Which three statements about gRPC and gNMI in the context of model-driven telemetry are true? (Choose three.)
Explanation: gRPC uses HTTP/2 for transport and Protocol Buffers for serialization. gNMI is a gRPC-based protocol specifically for network management and telemetry. gNMI supports both telemetry subscriptions (Subscribe RPC) and configuration operations (Set, Get). It uses YANG models to define data paths. gNMI does not require NETCONF; it operates independently over gRPC.
Which two statements about IP Source Guard are true? (Choose two.)
Explanation: IP Source Guard (IPSG) filters IP traffic on a per-port basis using the DHCP snooping binding database. Option A is correct because IPSG uses the binding database to validate source IP addresses. Option D is correct because IPSG can be configured with a static IP source binding for hosts with static IP addresses. Option B is incorrect because IPSG does not filter MAC addresses; that is the role of port security. Option C is incorrect because IPSG is applied on Layer 2 switch ports, not on Layer 3 interfaces. Option E is incorrect because IPSG does not require 802.1X; it can work with DHCP snooping alone.
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Practice all Select Two (Multi-Select) QuestionsMulti-select questions tell you to 'Choose TWO' or 'Choose THREE'. Getting partial credit is not a thing — you must select all correct answers with no incorrect ones. The stem always states how many to choose, so trust it. These questions require precision, not best-guess elimination. These appear throughout the 350-401 and require you to apply your knowledge, not just recall facts.
Cisco doesn't publish an exact breakdown, but scenario-based questions (especially exhibit and command-output formats) make up a significant portion of the 350-401. Practicing each scenario type ensures you're ready for any format.
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